Home / 13,541.12-18,687.47-7,572.43

Finding the Fourth Proportional to 13,541.12, 18,687.47 and 7,572.43

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Solution

The fourth proportional to 13,541.12, 18,687.47 and 7,572.43 is: 10,450.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.12 : 18,687.47 = 7,572.43 : x
  2. Step 2: Convert to fraction form
    13,541.12/18,687.47 = 7,572.43/x
  3. Step 3: Cross multiply
    13,541.12x = 18,687.47 × 7,572.43
  4. Step 4: Simplify right side
    13,541.12x = 141,509,473.87
  5. Step 5: Solve for x
    x = 141,509,473.87/13,541.12
  6. Step 6: Final answer
    x = 10,450.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.